ELATERIDiE. — HYPNOIDUS. 261 



1829, copiously."— ifc?i/. F. W. Hope. « Taken at the Mumbles 

 (near Swansea), by Dr. Leach." — L. W. Dillwyn, Esq. 



Sp. 2. rivularius. Niger, supra subceneus, antennis, pedibus, thoracis angulis 



posticis, elytrorumque margine rvfo-ferrugineis. (Long. corp. 2J — 3 lin.) 

 El. rivularius. Gyllenhal— N. G. rivularis. Steph. Catal. 124. No. 1259. 



Black, slightly tinted with aeneous above : head punctured, with a broad frontal 

 depression: thorax somewhat quadrate, with the posterior angles acute, 

 carinated, and rufo-ferruginous, the disc punctate and slightly pubescent: 

 elytra oblong, acuminated at the apex, regularly and somewhat deeply striated, 

 the striae impunctate, with the interstices somewhat convex, and obscurely 

 punctulate ; the outer margin more or less ferruginous : body pitchy-black 

 beneath, with the apex paler : legs -uid antennae entirely rufo-testaceous. 



Of this insect, the only examples I have seen were taken in 

 Gloucestershire. 



B. With the second and third joints of the antennae alone smallest. 



Sp. 3. Agricola. Niger subpubescens, thorace non carinato, angulis posticis 

 acutis rufis, maculis quatuor oblongis elytrorum pedibusque pallidis. (Lono\ 

 corp. 1^— 1^ lin.) 



El. Agricola. Zetterstedt, teste Gyllenhal, I. c. — El. quadrum. Gyllenhal, iv. 

 357. 



Black, slightly pubescent : head finely punctured : thorax short, with the sides 

 much rounded, especially anteriorly, the disc very convex, without a dorsal 

 carina, finely punctured, the posterior spines robust at the base, bent out- 

 wardly, acute and entirely rufo-testaceous : elytra oblong-ovate, not broader 

 than the middle of the thorax, moderately convex and striated, the striae ob- 

 soletely punctate, with the interstices faintly punctulated; each elytron with 

 a large oblong pale humeral spot, and a second towards the apex longer and 

 narrower: mouth, palpi, antennae, and legs pale testaceous. 



Differs chiefly from the following by having the thorax shorter, more convex, 

 with the sides expanded anteriorly, the posterior angles pale, and the disc not 

 carinated. 



Near Bristol, by Mr. Millard, apparently in plenty. " Netley, 

 Salop."— Rev. F. W. Hope. 



Sp. 4. quadripustulatus. Niger subpubescens, thorace carind dorsali, elytris 

 depressis tenue striatis impunctatis, punctis duobus pedibusque pallida jlaves- 

 centibus. (Long. corp. li — 1^ lin.) 



El. 4-pustulatus. Fabrkius. — Don. xvi. j)l. 545. — N. G. 4-pustulatus. Steph. 

 Catal. 124. No. 1260. 



